Hi, I'm Nathan.Sorry to hear that you're having trouble with this but I'll do my best to help you.
This is either a printhead fault or an alignment issue.
Initially, please go into the printer menu on the front panel, under settings, and then into the Alignment function, following through the prompts it gives you on screen to complete the alignment process. Then test a new print and let me know the results.
Do you need more help with this?
If so, simply reply back on this page.
Please note: You have already paid your fee to the site; I'd like to help you and provide value for that fee, but I do need to communicate with you here to do so.